Power transformer



FIG. 1 is a front, top, and left side perspective view of a power transformer showing our new design;

FIG. 2 is a front, top, and right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 3 ;

FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 5 ; and,

FIG. 11 is a cross-sectional view taken along line 11-11 and 11′-11′ in FIG. 2 . 

CLAIM The ornamental design for a power transformer, as shown and described. 